III. Hoàn thành câu với dạng đúng của từ trong ngoặc, sử dụng so sánh hơn của tính từ và trạng từ. (Complete the sentences with the correct form of the word in brackets, using comparative for adjectives and adverbs.) 1. Sound travels _______ (slow) than light. 2. The earth orbits around the Sun a bit _______ (rapid) than Mars does. 3. I was tired and couldn’t walk any _______ (far). 4. The people in the countryside are (nice) and _______ (friendly). 5. My mum thinks that cats are _______ (good) pets than dogs. 6. A blue whale is much _______ (heavy) than an elephant. 7. I had to run _______ (quick) to catch him. 8. You look _______ (thin) than last month. Have you lost weight? 9. You’ll fail the English exam unless you study _______ (hard). 10. Bicycles are _______ (slow) than cars.